package com.michel.sistema.util;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

import org.hibernate.SessionFactory;

import com.michel.sistema.vendas.HibernateUtil;

public class ConexaoHibernateFilter implements Filter {

	private SessionFactory sf;

	@Override
	public void destroy() {

	}

	@Override
	public void doFilter(ServletRequest servletFilter,
			ServletResponse servletResponse, FilterChain chain)
			throws IOException, ServletException {
		try {
			sf.getCurrentSession().beginTransaction();
			chain.doFilter(servletFilter, servletResponse);
			sf.getCurrentSession().getTransaction().commit();
			sf.getCurrentSession().close();
		} catch (Throwable e1) {
			try {
				if (sf.getCurrentSession().getTransaction().isActive()) {
					sf.getCurrentSession().getTransaction().rollback();
				}

			} catch (Exception e2) {
				e2.printStackTrace();
			}
			throw new ServletException();

		}
	}

	@Override
	public void init(FilterConfig arg0) throws ServletException {
		sf = HibernateUtil.getSession();

	}

}
